Digital Clock App and Widget with Roman Numeral Display
About this app
The RomanDigital app provides a clock of unique style that can be used to repurpose an old device or to display time on a current model.
For more personal use, the RomanDigital widget makes a distinctive addition to a device's Home screen.
RomanDigital includes features expected in an ordinary digital clock, such as: * Choice of 12 or 24 hour format * Optional AM/PM indicator (uniquely integrated into the time display) * Option to keep display on when app is in the foreground * Display in either portrait or landscape
RomanDigital also includes: * Independent configuration of app and widgets. * Selectable app and widget time display typeface (monospace, sans-serif, or serif). * Variable widget background opacity that can be set from 0% to 100% by tens. * Selectable widget time zone. * Selectable widget layouts to add a time zone label. * Selectable app time display color.
For more detailed information including a FAQ list, please see the README.md file accompanying the RomanDigital source code.
Source code for RomanDigital is available at: https://github.com/dfyockey/RomanDigital
Licensed under Apache-2.0, by David Yockey.
What's New in v3.0.2
Imported from the F-Droid repository index.
- Fixed:
- * (v3.0.2) Crash on start or restart of widget update service occurring in an unforeseen circumstance; fix prevents crash and presents a dialog with options for how to proceed.
- * (v3.0.1) Possible crash on start or restart of widget update service.
- New in version 3.0.0
- Added:
- * Selection between monospace, sans-serif, and serif typeface to both app and widget settings.
Version history
May 29, 2026 · 8.9 MB · Android API 21–35 · code 17
Imported from the F-Droid repository index.
- Fixed:
- * (v3.0.2) Crash on start or restart of widget update service occurring in an unforeseen circumstance; fix prevents crash and presents a dialog with options for how to proceed.
- * (v3.0.1) Possible crash on start or restart of widget update service.
- New in version 3.0.0
- Added:
- * Selection between monospace, sans-serif, and serif typeface to both app and widget settings.
SHA-256 90394c40e0fa45339e1c0a827852952fff90c08794d2de28ab28c73f3e8842ca
Mar 18, 2026 · 8.9 MB · Android API 21–35 · code 16
Imported from the F-Droid repository index.
- Fixed:
- * Possible crash on start of widget update service.
- New in version 3.0.0
- Added:
- * Selection between monospace, sans-serif, and serif typeface to both app and widget settings.
- Replaced:
SHA-256 21795ffe13609d7e6b2befb22dbf9c8a22b11340b2acbde0b2035154542af6b1
Mar 1, 2026 · 8.9 MB · Android API 21–35 · code 15
Imported from the F-Droid repository index.
- Added:
- * Selection between monospace, sans-serif, and serif typeface to both app and widget settings.
- Replaced:
- * Exact-alarm-based widget updating with Service-based widget updating responsive to Android's time tick signal, thereby improving widget time display reliability and reducing battery consumption.
- Fixed:
- * various UI/UX issues.
SHA-256 8a9f34b3f709c6d546c4ef9434e133a937aed42a1a6a38d9e8aeeaf7ddd4619f
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be net.diffengine.romandigitalclock is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 3.0.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall RomanDigital first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of RomanDigital, and a listing is removed when the evidence for it stops holding up.
Get RomanDigital
Every source we list for net.diffengine.romandigitalclock is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
90394c40e0fa45339e1c0a827852952fff90c08794d2de28ab28c73f3e8842ca
Signing certificate
48a768c4ced584b930fe9315333a131e653426e5ceb16bfa5de12dc9403db0f4
Permissions Required
What each permission lets RomanDigital do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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